A villa is a property/house that is usually set out over two or more floors. A standalone villa is defined as a villa that has boundary walls and stands on its own private land. It is not attached to any other building so it is detached, private and literally "stands alone". Standalone villas are not commonly found in Central Doha including most of the districts within the C-Ring Road as they mainly contain residential and office blocks. However, as you travel further out of Doha and beyond the C-Ring Road it become increasingly common to find standalone villas.
The amenities offered by standalone villas vary depending on the price, size and location. It is much more common to find a standalone villa with a private swimming pool in West Bay Lagoon than it is in Al Khor. Standalone villas are good for large families wanting their own private grounds or for companies looking to house their staff. It is quite common to see standalone villas advertised as suitable for bachelor accommodation. If you are specifically looking for a standalone villa, check the details advertised with the agent as sometimes compound villas are advertised as being standalone when they are in fact not standalone but instead the agent refers to the villa being detached from its neighbouring villa as such.
West Bay is not a district in its own right contrary to popular belief, but rather the name "West Bay" refers to a comprisal of districts on the east coast of Qatar, just north of Central Doha. The area when "mapped" out actually consists of the districts of Al Dafna, Al Qassar and Onaiza and West Bay Lagoon. The area is modern with some of the tallest skyscrapers in Qatar which are home to the Business centre of the capital. The area also houses many Head Offices and administrative buildings of the State set against the clear blue backdrop of the Persian Gulf waters, forming the "Doha Skyline" that is most famously seen in imagery of Doha. The Diplomatic Area is also located within West Bay.
The area has good road links as one would expect including the Al Corniche Street, Diplomatic Street, Omar Al Mukhtar Street, Majlis Al Taawon Street and the beginning of the Lusail Expressway. West Bay has its own Metro station on the Red Line and bus route. It is a very popular location for rentals and there is a wide choice of property types and sizes available to suit all and a convenient location to rent in if one is looking to be close to the Business District and Central Doha without the congestion.